/*
**    Copyright (C) 2003-2011 Institute for Systems Biology
**                            Seattle, Washington, USA.
**
**    This library is free software; you can redistribute it and/or
**    modify it under the terms of the GNU Lesser General Public
**    License as published by the Free Software Foundation; either
**    version 3 of the License, or (at your option) any later version.
**
**    This library is distributed in the hope that it will be useful,
**    but WITHOUT ANY WARRANTY; without even the implied warranty of
**    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
**    Lesser General Public License for more details.
**
**    You should have received a copy of the GNU Lesser General Public
**    License along with this library; if not, write to the Free Software
**    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
*/

package org.systemsbiology.util;

import java.io.IOException;
import java.io.OutputStream;

/**
 * An output stream that doesn't actually output anything.
 * It's quite a lot easier to use one of these than have a million checks for null or "should I output anything?",
 * although the former can save time in completely unnecessary string processing.
 * @author anorberg
 *
 */
public class NullOutputStream extends OutputStream {

	//implicit default constructor
	
	/**
	 * Does nothing, more efficiently than letting OutputStream
	 * do its loop thing and call write(int) for the purpose
	 * of doing nothing len times in a row.
	 */
	@Override
	public void write(byte[] b, int off, int len) throws IOException{
	}
	
	/**
	 * Does nothing, more efficiently than letting OutputStream
	 * do its loop thing and call write(int) for the purpose of
	 * doing nothing N times in a row.
	 */
	@Override
	public void write(byte[] b) throws IOException{
	}
	
	/**
	 * Does nothing.
	 */
	@Override
	public void write(int b) throws IOException {
	}

}
